Results 51 to 60 of about 7,959 (164)

N-Phenyl-N-{4-[5-(4-pyridyl)-1,3,4-oxadiazol-2-yl]phenyl}aniline [PDF]

open access: yes, 2008
The title compound, C25H18N4O, is a non-planar bipolar ligand containing triphenyl-amine and 1,3,4-oxadiazole units. In the mol-ecule, the benzene ring, the 1,3,4-oxadiazole ring, and the pyridine ring are twisted slightly with respect to each other ...
Li-Ping Han   +8 more
core   +2 more sources

Cyclo dehydration reaction of polyhydrazides. II. Kinetic parameters obtained from isothermal thermogravimetry [PDF]

open access: yes, 1988
The kinetics of the thermal conversion reaction of poly-(1,3-phenyl-1,4-phenyl)-hydrazide into poly-(1,3-phenyl-1,4-phenyl)-1,3,4-oxadiazole have been studied with isothermal thermogravimetry in continuation of a study with nonisothermal thermogravimetry
Gebben, B.   +2 more
core   +2 more sources

Light propagation and fluorescence quantum yields in liquid scintillators

open access: yes, 2015
For the simulation of the scintillation and Cherenkov light propagation in large liquid scintillator detectors a detailed knowledge about the absorption and emission spectra of the scintillator molecules is mandatory. Furthermore reemission probabilities
Buck, C., Gramlich, B., Wagner, S.
core   +1 more source

ChemInform Abstract: A Facile Synthesis of N‐Z/Boc‐Protected 1,3,4‐Oxadiazole‐Based Peptidomimetics Employing Peptidyl Thiosemicarbazides. [PDF]

open access: yes, 2010
A convenient protocol is presented for the cyclization of dipeptidyl thiosemicarbazides (III)
Nagendra, G.   +2 more
core   +1 more source

Symmetric 3,5-Pyrazole and Isoxazole Heterocycles Comprising a Bent Core Unit: Synthesis and Mesomorphic Characterisation [PDF]

open access: yes, 2015
The synthesis and characterisation of some new liquid crystalline (LC) heteroaromatic compounds containing the five-membered pyrazole/isoxazole rings is reported. Some of the compounds exhibited enantiotropic LC properties.
Hariprasad, S., Srinivasa, H.T.
core   +1 more source

Синтез і дослідження антиоксидантної дії [(1-арил-5-форміл-1Н-імідазол-4-іл)тіо]пропанових кислот [PDF]

open access: yes, 2014
З метою пошуку в ряду імідазолілтіоалканкарбонових кислот сполук з антиоксидантними властивостями реакцією доступних 4-хлоро-5-формілімідазолів із тіопропановою кислотою синтезували нові [(1-арил-5-формілімідазол-4-іл)тіо] пропанові кислоти.
Вовк, М.В.   +4 more
core   +2 more sources

Synthesis and Characterization of 1,3,4-Oxadiazoles Derived From 9-Fluorenone [PDF]

open access: yes, 2013
In the present work, 9-fluorenone-2-carboxylic acid methyl ester (1) was prepared from 9-fluorenone-2-carboxylic acid and then converted into the acid hydrazide (2).
Dawood, Rafid Saad
core   +2 more sources

Synthesis and characterization of some ethoxyphthalimide substituted triazole derivatives assembled with pyridine and thiazolidinone heterocycles [PDF]

open access: yes, 2009
Novel 2-(4-substitutedphenyl)-3-{3-[(S-ethoxyphthalimido)sulfanyl]-5-pyridin-4-yl-4H-1,2,4-triazol-4-yl}-1,3-thiazolidin-4-ones (6a-d) were synthesized via a multistep reaction sequence, using isoniazid (isonicotinic acid hydrazide) as starting material.
Dangi, Rajaram   +4 more
core  

Novel Scintillating Materials Based on Phenyl-Polysiloxane for Neutron Detection and Monitoring

open access: yes, 2013
Neutron detectors are extensively used at many nuclear research facilities across Europe. Their application range covers many topics in basic and applied nuclear research: in nuclear structure and reaction dynamics (reaction reconstruction and decay ...
Bermudez, J.   +9 more
core   +1 more source

C-(2-Deoxy-D-arabino-hex-1-enopyranosyl)-oxadiazoles: synthesis of possible isomers and their evaluation as glycogen phosphorylase inhibitors [PDF]

open access: yes, 2021
Bokor, Éva   +6 more
core   +1 more source

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